Rihanna and Katy Perry may be good friends, but friends occasionally fight. Or are pitted against each other in red carpet style showdowns, at least!

At the MTV Europe Music Awards Sunday night, the music stars showcased their unique styles as only they can, and we have to say, pulled it off well.

Rihanna rocked with Bon Jovi at the event, while Katy made her first public debut as Mrs. Russell Brand. Whose look do you prefer? Vote below!

[Photos: Splash News]

Who looked better on the red carpet?

More here: MTV Europe Fashion Face-Off: Rihanna vs. Katy Perry